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Ilsan Lake Park Lakeside, Janghang-dong, Ilsandong-guGoyang Terminal Lotte Outlet & Baekseok Station, Baekseok-dong, Ilsandong-guAnigol Cafe Street, Pung-dong, Ilsandong-guDongguk Univ. Ilsan Hospital & WeSTAR City, Siksa-dong, Ilsandong-gu

Population of Ilsandong-gu, Goyang-si

As of September 2026

Total population298,091people
Households134,559households
Average age44.9yrs
Sex ratioMale144,289peopleFemale153,802people48.4%51.6%

Population change

Change over time

4-year trend

Unit: people

298,492 in 2022292,300 in 2023294,457 in 2024294,480 in 2025298,091 in 202620222023202420252026

298,492 in 2022298,091 in 2026

Barely changed over the past 4 years.

Population structure

Population by age

As of September 2026

Population by age and sex

Unit: people

Under 1010s20s30s40sπŸ‘‘ 50s60s70s80s90s100+8,25613,58716,73320,66321,17826,45622,9289,7983,978700127,93212,97817,55820,66622,30028,91423,44611,0907,0781,80436

Male 144,289Female 153,802

Age structure

Unit: %

Youth 9.9%Working age 70.8%Seniors 19.4%9.9%70.8%19.4%

Youth 9.9%Working age 70.8%Seniors 19.4%

50s is the largest group, at 55,370 people.

Population ranking

Population by region

As of September 2026
  • YoungestSiksa-dong41.3 yrs
  • OldestJiyeong-dong61.1 yrs
RegionShare
Baekseok-dong47,94516.1%46.1 yrs
Janghang-dong46,45815.6%41.7 yrs
Jungsan-dong42,33414.2%47.5 yrs
Pung-dong41,74014%44.3 yrs
Siksa-dong40,18313.5%41.3 yrs
Madu-dong37,25212.5%44.5 yrs
Jeongbalsan-dong20,9647%47.3 yrs
Seongseok-dong9,5633.2%49.1 yrs
Sarihyeon-dong5,9212%49.5 yrs
Seolmun-dong2,6180.9%53.6 yrs

The top three areas hold 45.9% of the population of Ilsandong-gu, Goyang-si.

Frequently asked questions❓

Ilsandong-gu, Goyang-si has 298,091 residents as of September 2026., 3,611 more than a year earlier.
Baekseok-dong, home to 47,945 residents (16.1% of Ilsandong-gu, Goyang-si).
It is 44.9 as of September 2026., 0.8 years below the national average of 45.7. Among its neighborhoods, Siksa-dong is youngest at 41.3 and Jiyeong-dong oldest at 61.1.
It fell 0.1% over 4 years, from 298,492 in 2022 to 298,091 in September 2026.
This is resident registration data from Korea's Ministry of the Interior and Safety. Figures are as of the end of September 2026 and are updated monthly. The data is open under KOGL Type 1.
Resident registration counts people at their registered address. The census counts them where they actually live. The gap is widest in university towns and industrial areas, where many people never change their registered address.

Sources 🌐